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path: root/drivers/message/fusion
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-rw-r--r--drivers/message/fusion/mptbase.c15
-rw-r--r--drivers/message/fusion/mptfc.c2
-rw-r--r--drivers/message/fusion/mptsas.c45
-rw-r--r--drivers/message/fusion/mptsas.h1
-rw-r--r--drivers/message/fusion/mptscsih.c2
-rw-r--r--drivers/message/fusion/mptspi.c2
6 files changed, 41 insertions, 26 deletions
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 9903e9660a38..549797d0301d 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -57,7 +57,7 @@
#include <linux/kdev_t.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
-#include <linux/interrupt.h> /* needed for in_interrupt() proto */
+#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/kthread.h>
#include <scsi/scsi_host.h>
@@ -473,7 +473,6 @@ mpt_turbo_reply(MPT_ADAPTER *ioc, u32 pa)
mpt_free_msg_frame(ioc, mf);
mb();
return;
- break;
}
mr = (MPT_FRAME_HDR *) CAST_U32_TO_PTR(pa);
break;
@@ -6336,7 +6335,6 @@ SendEventAck(MPT_ADAPTER *ioc, EventNotificationReply_t *evnp)
* Page header is updated.
*
* Returns 0 for success
- * -EPERM if not allowed due to ISR context
* -EAGAIN if no msg frames currently available
* -EFAULT for non-successful reply or no reply (timeout)
*/
@@ -6354,19 +6352,10 @@ mpt_config(MPT_ADAPTER *ioc, CONFIGPARMS *pCfg)
u8 page_type = 0, extend_page;
unsigned long timeleft;
unsigned long flags;
- int in_isr;
u8 issue_hard_reset = 0;
u8 retry_count = 0;
- /* Prevent calling wait_event() (below), if caller happens
- * to be in ISR context, because that is fatal!
- */
- in_isr = in_interrupt();
- if (in_isr) {
- dcprintk(ioc, printk(MYIOC_s_WARN_FMT "Config request not allowed in ISR context!\n",
- ioc->name));
- return -EPERM;
- }
+ might_sleep();
/* don't send a config page during diag reset */
spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index f92b0433f599..0484e9c15c09 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -50,7 +50,7 @@
#include <linux/kdev_t.h>
#include <linux/blkdev.h>
#include <linux/delay.h> /* for mdelay */
-#include <linux/interrupt.h> /* needed for in_interrupt() proto */
+#include <linux/interrupt.h>
#include <linux/reboot.h> /* notifier code */
#include <linux/workqueue.h>
#include <linux/sort.h>
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 18b91ea1a353..5eb0b3361e4e 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -289,6 +289,7 @@ mptsas_add_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event,
spin_lock_irqsave(&ioc->fw_event_lock, flags);
list_add_tail(&fw_event->list, &ioc->fw_event_list);
+ fw_event->users = 1;
INIT_DELAYED_WORK(&fw_event->work, mptsas_firmware_event_work);
devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: add (fw_event=0x%p)"
"on cpuid %d\n", ioc->name, __func__,
@@ -314,6 +315,15 @@ mptsas_requeue_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event,
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
+static void __mptsas_free_fw_event(MPT_ADAPTER *ioc,
+ struct fw_event_work *fw_event)
+{
+ devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: kfree (fw_event=0x%p)\n",
+ ioc->name, __func__, fw_event));
+ list_del(&fw_event->list);
+ kfree(fw_event);
+}
+
/* free memory associated to a sas firmware event */
static void
mptsas_free_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event)
@@ -321,10 +331,9 @@ mptsas_free_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event)
unsigned long flags;
spin_lock_irqsave(&ioc->fw_event_lock, flags);
- devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: kfree (fw_event=0x%p)\n",
- ioc->name, __func__, fw_event));
- list_del(&fw_event->list);
- kfree(fw_event);
+ fw_event->users--;
+ if (!fw_event->users)
+ __mptsas_free_fw_event(ioc, fw_event);
spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
@@ -333,9 +342,10 @@ mptsas_free_fw_event(MPT_ADAPTER *ioc, struct fw_event_work *fw_event)
static void
mptsas_cleanup_fw_event_q(MPT_ADAPTER *ioc)
{
- struct fw_event_work *fw_event, *next;
+ struct fw_event_work *fw_event;
struct mptsas_target_reset_event *target_reset_list, *n;
MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
+ unsigned long flags;
/* flush the target_reset_list */
if (!list_empty(&hd->target_reset_list)) {
@@ -350,14 +360,29 @@ mptsas_cleanup_fw_event_q(MPT_ADAPTER *ioc)
}
}
- if (list_empty(&ioc->fw_event_list) ||
- !ioc->fw_event_q || in_interrupt())
+ if (list_empty(&ioc->fw_event_list) || !ioc->fw_event_q)
return;
- list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
- if (cancel_delayed_work(&fw_event->work))
- mptsas_free_fw_event(ioc, fw_event);
+ spin_lock_irqsave(&ioc->fw_event_lock, flags);
+
+ while (!list_empty(&ioc->fw_event_list)) {
+ bool canceled = false;
+
+ fw_event = list_first_entry(&ioc->fw_event_list,
+ struct fw_event_work, list);
+ fw_event->users++;
+ spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+ if (cancel_delayed_work_sync(&fw_event->work))
+ canceled = true;
+
+ spin_lock_irqsave(&ioc->fw_event_lock, flags);
+ if (canceled)
+ fw_event->users--;
+ fw_event->users--;
+ WARN_ON_ONCE(fw_event->users);
+ __mptsas_free_fw_event(ioc, fw_event);
}
+ spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
}
diff --git a/drivers/message/fusion/mptsas.h b/drivers/message/fusion/mptsas.h
index e35b13891fe4..71abf3477495 100644
--- a/drivers/message/fusion/mptsas.h
+++ b/drivers/message/fusion/mptsas.h
@@ -107,6 +107,7 @@ struct mptsas_hotplug_event {
struct fw_event_work {
struct list_head list;
struct delayed_work work;
+ int users;
MPT_ADAPTER *ioc;
u32 event;
u8 retries;
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index e7f0d4ae0f96..ce2e5b21978e 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -52,7 +52,7 @@
#include <linux/kdev_t.h>
#include <linux/blkdev.h>
#include <linux/delay.h> /* for mdelay */
-#include <linux/interrupt.h> /* needed for in_interrupt() proto */
+#include <linux/interrupt.h>
#include <linux/reboot.h> /* notifier code */
#include <linux/workqueue.h>
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
index eabc4de5816c..af0ce5611e4a 100644
--- a/drivers/message/fusion/mptspi.c
+++ b/drivers/message/fusion/mptspi.c
@@ -52,7 +52,7 @@
#include <linux/kdev_t.h>
#include <linux/blkdev.h>
#include <linux/delay.h> /* for mdelay */
-#include <linux/interrupt.h> /* needed for in_interrupt() proto */
+#include <linux/interrupt.h>
#include <linux/reboot.h> /* notifier code */
#include <linux/workqueue.h>
#include <linux/raid_class.h>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 07:37:29 +0300